The question of whether a deal can be agreed by the Conservatives and Liberal Democrats over a coalition government dominates Sunday's papers.
The Sunday Telegraph insists that party politics must be put aside
for the sake of the country.
It believes this will be better than Mr Cameron leading a "vulnerable minority government through the storms ahead".
But, under the headline "No Deal Cam", the
Sunday Mirror suggests it may not be over yet for a Lib Dem-Labour deal.
Independent on Sunday claims some senior Liberal Democrats
want their leader to support a coalition with Labour and smaller parties.
It says they think the Tories will not deliver on proportional representation.
Observer says it has seen a secret document on Europe
which may threaten a Tory-Lib Dem coalition.
"A diatribe laced with threats" is how the
Mail on Sunday describes the first post-election phone conversation between Gordon Brown and Nick Clegg.
A number of papers are in no doubt that while partnership talks go on, Gordon Brown is under growing pressure to step down from voters and his own party.
Sunday Express says that if Mr Brown refuses to resign,
a number of senior ministers are ready to tell him to go, publicly.
It says David Miliband is his most likely successor as Labour leader.
Sunday Times also says colleagues have warned Mr Brown
trying to cling to power would be a "disaster".
"Who has right to govern?", a headline on the
Sunday Express back page, refers to the Premier League title race.
It says either Chelsea or Manchester United will win the league.
News of the World says Rio Ferdinand's place in the World Cup squad is under threat
if he cannot prove his fitness.
Sunday Mirror reports that Wayne Bridge has made clear his rejection of a World Cup role
by booking a summer holiday to the US.